First, the K1 visa expires on entry. Second, if the I-94 expires in 9 days, instead of worrying about delays with I-693, best for you to submit the I-485 as soon as possible for "authorized stay".
See if this post explains the confusion for DS-3025 or I-693?
https://www.visajourney.com/forums/topic/799273-k1-aos-have-ds-3025-and-received-rfe-for-i-693-medical-documentation/#findComment-10833637
The short answer is that a copy of DS-3025 is sufficient to submit with the I-485.
The long answer is that USCIS may or may not RFE for I-693 with the DS-3025, but submitting the I-693 with the I-485 avoids the chance for RFE for I-693. Don't confuse the extreme case mentioned by Nich-Nick as the norm. Most US Civil Surgeons are competent.
Unfortunately, only USCIS or the US Civil Surgeon can answer if your DS-3025 is complete/compliant or not. If not, then USCIS will send an RFE for the I-693. Or you can see the US Civil Surgeon to have the I-693 completed, or determine the needed exam or doses to make the I-693 compliant.
USCIS should have a copy of the original DS-3025 in the brown packet received by border patrol. You should also include a copy of the DS-3025 single-sided, with the I-485. Yes, you keep a copy of DS-3025 for yourself. If USCIS does RFE for a I-693, then the US Civil Surgeon will need to see your copy of DS-3025.
BTW, if you do get the I-693 RFE, the US Civil Surgeon seals the I-693 and supporting documents in a brown packet much like the K1 brown packet. And you send in the sealed I-693 brown packet with the RFE letter.